pederson



(No Model.) 3 Sheets-Sheet 1. 0. PEDERSON.

RIVETING MACHINE. No. 333,780. Patented Jan. 5 1886..

6 WITNESSES N. PETERS. Phuloidlmgmplwr, WAr-hingion. 0.6.

(No Model.) 3 Sheets-Sheet 2. O. PEDERSON.

RIVBTING MACHINE.

Patented Jan. 5, 1886.

INVENTOR ATTORNBY$ WITNESSES:

3 Sheets-Sheet 3.

(N0 Model.)

0. PEDERSON.

RIVETING MACHINE at ented Jan. 5, 1886.

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Wz'tne sse s,

UNITED STATES PATENT OFFICE.

OLE PEDERSON, OF COLUMBUS, OHIO, ASSIGNOR TO THE LEOHNER MANU- FAOTURIN G COMPANY, OF SAME PLACE.

RIVETING -MACHINE.

SPECIFICATION forming part of Letters Patent No. 333,780, dated January 5, 1886. Application filed January 30, 1884. Serial No. 119,225. (No model.)

To all whom it may concern:

Be it known that I, OLE PEDERSON, a citi-- zen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Riveting-Machines, of which the following is a specification, reference be ing had therein to the accompanying drawings.

Figure 1 is a side elevation, partly in section, of myimproved riveting-machine. Fig. 2 is a transverse section on line as m, Fig. 1. Fig. 3 is a detached view of one of the sliding carriages. Fig. 4 is a vertical longitudinal section, enlarged, of one of the riveting-man- 1 drels and its inclosingcylinder. Figs. 5 and 6 are detached views. Fig. 7 is avertical section on line y y, Fig. 5. Fig. 8 is a detached view of the universal joint. Fig. 9 is a side view of the i'ivetingpunch. Fig. 10 is an end View of the 'rivetingpunch. Fig. 11 is a side View of a supporting device for holding articles while being acted upon by the rivetingmachine. Fig. 12 shows a horizontal section, showing the lugs and ears through which 2 passes the screw for holding the two parts of the machine properly. Fig. 13 is a top plan view of the machine. Fig. 14: is a view show ing in side elevation one of the many ways of arranging the holder for the rivet or article 0 which is being riveted. Fig. 15 is a side view,

' and Fig. 16 a face view, of another method of arranging the holder.

The main frame is by preference made in two sections, which are duplicates of each 3 5 other. The devices which are mounted upon those two sections are also duplicates of each other; hence, for convenience, I will confine my description to one half of the machine, ex-

cept Where it is necessary to do otherwise for 0 the purpose of conveying a clear understanding of the construction and operation.

The frame has legs or upright supports A, and the sills or plates B, united at their inner ends by any convenient sort of hinge-joint, as

indicated at b, which will permit the sections to be adjusted so as to bring the riveters to or r from a common line, as will be hereinafter more fully described. Each section of the frame is provided with lugs a a, the lugs being connected by bolts or set-screws b b, each of which, as shown, engages with a thread on one of the lugs and passes loosely through the other. There is by preference a pair of these lugs (with a joining-bolt) on each side of the frame, and one or more wedges, stops, or abutment'pieces, B, can be interposed between the adjacent ends of the frame-sections, so that by means of the lugs, pivots, and wedges or stops the frame can be held rigidly under such adjustment as may be found desirable. A movable abutment or stop, adapted to be shifted into various positions, can be 'made in any suitable way for the purpose of the Wedge B, the latter, together with the parts a and b, constituting a lock or clamp to fasten the table in position after adjustment; but for devices of this character a clamp of any suitable construction may be substituted capable of accomplishing the same ends.

O O is the driving-shaft, mounted in suitable 7O bearings in the main frame, the inner ends of the two parts of the driving-shaft being connected with each other by a universal joint,

As shown in Figs. 1 and 8, the universal joint consists, essentially, of two sleeve-sections, D D, each splined to its respective shaftsection and provided with forks or arms d cl (1 d, and an intermediate knuckle, E, which is pivoted to the arms or legs d d. (See par- 8o ticularly Fig. 8.) I

c c are respectively a fast pulley and a loose pulley on outer end of shaft-section O. The upper face of the part B of the framesection is grooved or otherwise constructed to form a seat or way upon which slides a carriage.

As indicated in Figs. 2 and 13, I employ ribs or cleats b b, which confine the carriage to the upper face of the table, but permit it to slide freely longitudinally thereon. The carriage consists of a base-plate, F, provided with a downward-projecting bearing bracket or hanger, F, (see Figs. 1 and 3,) carrying at its lower end a boxing, f, a second downward- 5 projecting hanger, F carrying at its lower end a bearing, f ,and between these hangers a bearing, f, adapted to receive the upper end of a vertical shaft, G, the lower end of which is stepped or seated in the bearing f The uptoo per end of shaft G is provided with a crankpin, 9. (See Fig. 2.)

The carriage consists, in part, of two upward-projecting bearing brackets, posts,,or standards, H H, (see Figs. 1 and 3,) each of which is provided at its upper end with a boxing or bearing for the reception of a cylinder, to be hereinafter described, and with caps h.

Referring particularly to Figs. 1, 2, and 4:, M is a cylindricaltube or carrier mounted in the bearings, which, as heretofore described, are formed in the upper ends of the standards H H.

m is a cylinder-head screwed into the thread ed inner end of cylinder M, and m is a cylinder-cap provided with. a threaded flange, which screws onto the threaded outer end of the cylinder M. As indicated in Fig. 1, this head and cap may be made polygonal to facilitate the application of a wrench for screwing them to their places.

m is a ring or rib formed upon or rigidly attached to the cylinder about midway between its ends, and n 02, Figs. 1 and 13, are spiral springs fitting closely the outersurfaoe of the cylinder and interposed between the rib m and the opposing faces of the driver,to be described.

1? is a riveting-mandrel, the central portion, 1?, (see Fig. 4,) of this mandrel fitting closely the interior of the cylinder M. The upper face of one end of this mandrel is provided with a key-seat to receive a key, 19, Figs. 1 and 4, which is interposed between that end of the mandrel and the cylinder-cap m, thus compelling the mandrel to rotate with the cylinder, but permitting it to slide longitudinally therein.

Q Q are spiral springs surrounding the mandrel, and interposed between the central enlarged part, P, and the cylinder head on and cap m, respectively. p

U, Fig. 9, is the body or shank of the punch, which is seated in a recess or socket formed for its reception in the end of the mandrel 1?, there being by preference a transverse slot at or near the rear end of the socket to receive a wedge or key to dislodge the punch. The outer end or engaging-face of this punch is beveled off to a central line, a, Fig. 10, which extends about half the width of the punch, the remaining half not being beveled to an edge or line, but being somewhat flattened, so as to form a more effective riveting-surface, M. This flattened surface is somewhat V-shaped in end elevation, and the engagingface of the punch in its side elevation is concave, as shown in Fig. 9, so as to produce a suitable head upon the rivet.

With the riveters I combine a reciprocating driver consisting of a bar or plate, I, and projections, arms, or uprights, I I, the latter being preferably secured to or formed with the bar or plate I; or they may be otherwise arranged, so long as they act to properly unite the driver with the mandrel. As shown, the bar or plate I is of such length as to project through or into apertures in the lower ends of the standards H H.

i, Fig. 5, is a groove in the under face of the bar or plate I, and J is a sliding plate fitting closely in said groove and provided with an aperture or seat to receive the crank-pin g, above described, the arrangement of the parts being such that as the shaft G rotates, the bar or plate Jhasa compound movement imparted to it-that is to say, is caused to travel both lengthwise of the frame and transversely theretothe result being the reciprocation of the mandrel. The crank-pin g is but one ofseveral equivalent devices, the main feature of which consists in the eccentricity with which it revolves relatively to the axis of its shaft in order to impart the requisite movements to the driven parts, and in lieu thereof any wellknown eccentric may be used. The springs a lie between the ring m and the arms or projections I of the driver. These ribs or rings m act as outwardextending projections to insure that the driver shall engage properly with the riveter, and although I prefer that they should be of the form shown, I do not wish to be limited thereto. The engagement of the driver and riveter depends upon these opposing projections I and W, or their equivalents, and hence some of the parts of the invention are independent of the springs or n, which merely act to prevent sharp blows.

On each frame-section there is a bevel-gear, K, constructed with a sleeve, k, which fits closely and is splined to the shaft-section C or C, and therefore rotates with the shaft, but is free to slide longitudinally upon it. L is a bevel-pinion keyed to. the shaft G and meshing with the bevel-gear. Thus it will be seen that as the shaft-section is rotated the carriage is reciprocated upon its supportingframe section.

N is a band-pulley splined to the part m (see Figs. 1 and 4) of the cylinder. The neck or tubular extension of this band-pulley is grooved at n, Fig. 1, and O 0 is a bracket bolted to the outer face of the carriage, its upper forked end, 0, taking into the groove 11-, so that the belt-pulley is firmly held between this bracket and the adjacent standard H.

O is a belt passing around the pulley N and a corresponding pulley, N, which is mounted upon the tubular neck is of the bevel-gear K, Fig. 1.

R is a weight, and R a cord or chain connected at one end to the weight, and passing thence over a pulley, 1', which rotates in a vertical plane, and a pulley, 1", which rotates in a horizontal plane to an eye, S, which projects from the carriage so that the weight will draw the carriage backward-that is, toward the outer end of the main frame.

T is a foot-treadle connected to a cross-head, T, which in turn has one end of a cord or rope, of, attached to it, the cord passing thence over a pulley, S, to an eye, 8, at the opposite end of the carriage, so that the operator can, by

l .5 l l pressing down the foot-treadle, draw both car-' riages simultaneously toward the center of the machine, thus lifting the weights.

The vertical pulley r is mounted on the end of a stud, 1, Fig. 1, that projects horizontally from one side of the frame in such position that the rope R, which runs over the outer edge of this pulley, shall pass down at one side of the bracket A, that supportsthe shaft'bearing A It will be readily understood from an examination of the drawings that when the machine is in operation the article to be riveted should be supported in such position that after the carriages have been drawn together by means of the foot-treadle the punches will simultaneously engage with opposite ends of the rivet, and the punches will not only strike a series of rapid blows upon both ends of the rivet, but will also be turned rapidly around with the mandrels. I have found that by constructing the punch as shown-that is to say, with an edge, u, and a comparatively flat rivetingsurface, u-the work can be done much more rapidly and satisfactorily than would be possible were it not for this peculiar construction. It will also be seen that the movement of the driver I relative to the carriage is uniform,

being determined by the throw of the crankpin 9, and under ordinary circumstances the travel of the cylinder M and riveting-mandrel Pwill be substantially the same as that of the driver; yet the interposed springs n n and Q Q permit variations in the reciprocation of the carrier relative to that of the cylinder and mandrel, so that the blow ofthe riveting-punch is an elastic or yielding one, whereby the efficiency and durability of the machine is very much increased.

q 9 (see Fig. 4) are openings in the cylinder M to permit the passage of air.

I do not wish to be limited to the employment of a riveting-mandrel which is capable of a longitudinal movement separate and apart from the supportingcylinder, or combined with the latter, because under some circumstances the mandrel may be mounted directly in the standards H H and connected with the driver, in which case the spiral springs surrounding the mandrel would have their ends abutting against the parts I I, the enlarged part P of the mandrel acting as projections analogous to the rib or ring m as above described.

In Fig. 11, I have shown detached a support (also shown in edge view, Fig. 1) well adapted to hold a chain during the operation of riveting the ends of the pintles or cross-bars which connect the links together. The holder B shown revolves about a central support; but I do not wish to be limited to any special device for holding the articles that are to have rivets applied thereto, as any one of many forms may be used. It is well known that ticles during the riveting action.

ports for these clamps, braces, or holders have in some instances been of the nature of crossframes secured to the tables of the machine. Any suitable means of this character may be employed for supporting the rivet-holders.

In my construction there is a wheel or anvil, B, shown mounted upon a cross-frame, T carrying a bar, t, which supports the rivetholder B. As shown, Figs, 1, 13, and 14, the supporting-frame is fastened to one of the sections of the main frame in such a way as to bring the rivet-holder B into a central position relative to the riveters, but at the same time, in such a way as not to interfere with said sections being adjusted relatively to each other. The cross-frame may have as many bars T as are necessary to give sufficient strength, the one in Figs. 1 and 13 having two such bars-one on each side of the holder B and the one in Fig. 14 having but one.

It will be readily understood by those acquainted with the art to which this invention appertains that many of the features which I have shown can be retained when use is made of a single hammer or riveter, for it is a wellknown practice in this art to grasp a hingepintle or a caster-pintle in a vise-anvil or clamp and effect the heading with a single tool. Therefore I do not limit myself to the moving of both of two sections ofa table such as shown, inasmuch as the essential part of the invention can be preserved when a single riveter is in use supported upon a bed which can be adjusted relatively to the support that holds the article.

By referring to Fig. 14, it will be seen that the frame-section can be adjusted relatively to the rivet-holder, so as to vary the path of the riveter as it strikes the rivet. In Figs. 15

and 16 the holder for the rivet or article being tles it is advantageous to have the riveters adj ustable, because of the accuracy with which the rivets or pintles may be headed at both ends against the converging faces of the casterwheels.

\Vhen the riveters are working directly opposite, each acts as an anvil for the other; but in many cases they can be so arranged as that a stationary holder or anvil is requisite to resist the blow, as it can be disposed relatively to the other parts in the manner above indicatcd.

I have not shown any specific mechanism for raising the end of either bed or frame section; nor do I wish to be limited to any one of the well-known devices capable of accon1- plishing this function. I believe myself to be the first to have combined with an anvil or holder for the article acted upon a riveting-tool mounted upon abed which is adj ustablein such manner as to vary the path of the riveter relative to the anvil or holder for the article being riveted. Again, I believe myselfto be the first to have arranged two riveters oppositely to each other-that is, upon opposite sides of the anvil or holderwhen combined with supporting-tables or bed-frames, by which both of the riveters can be adjusted relatively to each other and relatively to the anvil or holder in such manner that they (the riveters) may be arranged to reciprocate either on common lines or on lines inclined to each other.

I am aware of the fact that use has been made of two opposing riveters above a bed or table, (supported on standards) each standard being adjustable toward and from the other, and each having set-screws by which it can be fastened rigidly in position after adjustment; but in the machines alluded to the riveters were not and could not be adjusted so as to move in paths inclined to each other, the adjustment provided being simply the increasing or lessening of the distance between the operative ends of the riveters.

- Inasmuch as the adjustment required in the machine shown is comparatively limited, any movements that may be experienced by, the legs which support the table-sections will be immaterial.

While I have described (both above and in the claims appearing below) the table-sections as being adjustable, yet it will be seen that the spirit of this part of the invention relates to the adjustment of the riveters, either together relatively to each other, or separately relatively to the article being riveted or its holder, and hence I do not wish to be understood as limiting myself to exactly the mechanism shown for effecting this'adjustment of the riveters, inasmuch as this part of the invention can be obtained by the substituting of means equivalent to the swinging bed-frames or table-sections.

-What I claim is.

1. In a. rivetingmachine, the combination of two opposing riveters and two supporting frames or tables respectively connected with the said riveters and adjustable, substantially as set forth, whereby the said riveters can-be arranged to reciprocate on a common line or at an inclination to each other, as described.

2. In a riveting-machine, the combination of two opposing riveters, supporting frames or tables respectively holding said riveters, and carriages interposed respectively between the riveters and their corresponding frames, the said frames being adjustable, substantially as set forth, whereby the carriages can be caused to move either on common lines or move in paths inclined to each other, substantially as set forth.

3. In a riveting-machine, the combination riveter canbe regulated relatively to the said holder, substantially as described.

4. In a riveting-machine, the combination of a riveter, a frame which carries the riveter, a pivot or hinge which supports the inner end of the frame, and a clamp to lock the frame relatively to the axis of the pivot or hinge, substantially as described.

5. In a riveting-machine, the combination of two opposing riveting-punches, a main frame formed in two sections respectively carrying the said punches, a pivot or hinge connecting the inner ends of the said sections, and a clamp which looks the said sections relatively to the axis of the pivot or hinge, substantially as set forth.

6. In a riveting-machine, the combination of two opposing riveters, a main frame formed in two sections respectively supporting said riveters,which sections are adjustable at their inner ends, a shaft mounted on one section of the main frame for imparting power to one of the riveters, a shaft mounted on the other section of the frame for imparting power to the other riveter, the two shafts being adjustable with the frame, and a power-transmitter connected with both of said shafts, substantially as described.

7. In a riveting-machine, the combination of the following elements: a supporting frame, a power-shaft mounted in said frame, a reciprocating riveter situated substantially parallel to the power-shaft, an eccentric revolving in a plane parallel with the riveter, a second shaft transverse to the power-shaft, and a reciprocating bar interposed between the eccentric and the riveter to impart power from the former to the latter, substantially as set forth.

.8. .In a riveting-machine, the combination of a reciprocating riveter, springs which engage with the riveter, a tube or carrier which holds the riveter, a reciprocating driver in proximity to the said tube or carrier, the power devices which reciprocate said driver, and springs interposed between the said driver and the tube or carrier to receive the initial .10. The combination, with a reciprocating riveter, of a revolving eccentric, g, areciproeating bar or plate driven by the said eccentrio, and devices, substantially as described, interposed between the said reciprocating bar or plate and the riveter and connecting them together, substantially as set forth.

11. The combination, with a reciprocating riveter, of a reciprocating bar, I, having projections I, the springs 12 n, and devices, substantially as described, interposed between the said springs and the riveter, substantially a I0 set forth.

12. In a riveting-machine, the combination of a reciprocating riveting-punch, the driver which moves the riveter, the plate J, moving on lines longitudinal of and on lines transverse r 5 to the riveter and driver and engaging with the driver, and the crank which drives said plate J, substantially as set forth.

13. The combination, with the riveter, of a OLE PEDERSON.

Witnesses: CHARLES W. MILLER, J. M. TIBBETTS. 

